„Approx. (Approximately)“

Same as “about” and “circa”; terms which when used in a letter of credit are construed to allow a difference not to exceed 10% more or 10% less than the monetary amount, or the quantity, or the unit price.

Source:

James E. Byrne, Dan Taylor (2007). “International Banking for a New Century”. International Letter of Credit Corporation , pp. 113-117.